The FF450R12KT4 from Infineon Technologies is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.75 to 2.15 V, DC Collector Current 450 A, Peak Collector Current 900 A, DC Forward Current 450 A. More details for FF450R12KT4 can be seen below.